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| [GMCnet] Chevy 4 Cylinder engine [message #332266] |
Fri, 18 May 2018 11:01  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
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I hadn't realized how far engine technology has come. Chevy announced a 4 cylinder engine for their pickup trucks that produces 310 hp and 348 lb-ft of torque, with that torque peaking from 1,500 to 4,000 rpm.
We've got room under the hatch for 2 of those!
Larry Davick
Fremont, California
A Mystery Machine
'76 (ish) Palm Beach
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332270 is a reply to message #332266] |
Fri, 18 May 2018 12:25  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
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ljdavick wrote on Fri, 18 May 2018 12:01I hadn't realized how far engine technology has come. Chevy announced a 4 cylinder engine for their pickup trucks that produces 310 hp and 348 lb-ft of torque, with that torque peaking from 1,500 to 4,000 rpm.
We've got room under the hatch for 2 of those!
Larry Davick
Larry,
That reads great, but there is a large gap between a passcar (a pickup is a passcar) rating and a real heavy duty rating.
I would lay down money that if they try to do what we do with that turbocharged engine, they will have to add jacket and oil cooling to the installation and I would not be surprised if they did also do a significant de-rate. Many current light truck drivelines have a computer controlled de-rate system that is hidden from the operator. When the manifold pressure and fuel flow is too high for too long, it will back off on both to save the warranty. With the "drive by wires" and limited instrumentation, this can be difficult to detect.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332272 is a reply to message #332270] |
Fri, 18 May 2018 12:32 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
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That's why I'd put in two ;-)
Larry Davick
Fremont, California
A Mystery Machine
'76 (ish) Palm Beach
> On May 18, 2018 at 10:25 AM Matt Colie wrote:
>
>
> ljdavick wrote on Fri, 18 May 2018 12:01
>
>>> I hadn't realized how far engine technology has come. Chevy announced a 4 cylinder engine for their pickup trucks that produces 310 hp and 348
>> lb-ft of torque, with that torque peaking from 1,500 to 4,000 rpm.
>>
>> We've got room under the hatch for 2 of those!
>>
>> Larry Davick
>>
>>> Larry,
>
> That reads great, but there is a large gap between a passcar (a pickup is a passcar) rating and a real heavy duty rating.
>
> I would lay down money that if they try to do what we do with that turbocharged engine, they will have to add jacket and oil cooling to the
> installation and I would not be surprised if they did also do a significant de-rate. Many current light truck drivelines have a computer controlled
> de-rate system that is hidden from the operator. When the manifold pressure and fuel flow is too high for too long, it will back off on both to save
> the warranty. With the "drive by wires" and limited instrumentation, this can be difficult to detect.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332404 is a reply to message #332280] |
Tue, 22 May 2018 10:44 |
Rob
Messages: 651
Registered: November 2013
Location: Victoria, BC
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Most of these current turbo 4’s have huge amounts of torque down low and (relatively) low redlines. For the most part - they’re built to replace V6 engines. The forced induction V6’s are replacing the V8’s, etc...
It will be interesting to see how they fair in the long term - they’re pretty highly stressed engines.
Rob
Victoria, BC
76 Royale - Rear Twins/Dry Bath
> On May 18, 2018, at 3:52 PM, Emery Stora wrote:
>
> However, didn’t those have to be revving quite high to develop the high hp?
> Our GMC 455 and 403 rarely go over 3000 rpm.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
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76 Royale - Rear Twins/Dry Bath
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332421 is a reply to message #332420] |
Tue, 22 May 2018 18:28 |
James Hupy
Messages: 6806
Registered: May 2010
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I also remember when you could buy a Chev "delete rear bumper, radio, 1
windshield wiper, no defroster" for under $2000.00. Long time ago. No, it
wouldn't plow the fields either.
Jim Hupy
On Tue, May 22, 2018, 4:20 PM Bruce Hislop wrote:
> Remember the Chevy pickup truck ads from back in the '70's boasting how a
> Chev pickup could plow a field.... It may be able to put out some power for
> a short period of time, but you don't see farmers out there ploughing the
> fields with their pickups.
>
> --
> Bruce Hislop
> ON Canada
> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
> My Staff says I never listen to them, or something like that
>
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332424 is a reply to message #332421] |
Tue, 22 May 2018 19:41 |
Emery Stora
Messages: 959
Registered: January 2011
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But the Ford Model T was used extensively with a plow behind it.
They sold Model T tractor conversion kits in the 1930’s.
Emery Stora
77 Kingsley
Frederick, CO
> On May 22, 2018, at 5:28 PM, James Hupy wrote:
>
> I also remember when you could buy a Chev "delete rear bumper, radio, 1
> windshield wiper, no defroster" for under $2000.00. Long time ago. No, it
> wouldn't plow the fields either.
> Jim Hupy
>
> On Tue, May 22, 2018, 4:20 PM Bruce Hislop wrote:
>
>> Remember the Chevy pickup truck ads from back in the '70's boasting how a
>> Chev pickup could plow a field.... It may be able to put out some power for
>> a short period of time, but you don't see farmers out there ploughing the
>> fields with their pickups.
>>
>> --
>> Bruce Hislop
>> ON Canada
>> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
>> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
>> My Staff says I never listen to them, or something like that
>>
>> _______________________________________________
>> GMCnet mailing list
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>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332448 is a reply to message #332266] |
Wed, 23 May 2018 11:44 |
bobby5832708
Messages: 237
Registered: November 2006
Location: Winter Springs FL
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But it's still a 4 cylinder engine.
In my opinion, the worst thing about a 4 is the way it idles with the trans in gear and the air conditioner on. They're better than the crappy 4 cylindered cars of the 70's and 80's but the late model 4's I've been in still let you know there's a 4 cyl throbbing under the hood. Fine for a cheap economy car, not what I would want to drive every day.
The second worst thing about a 4 is that it sounds like a 4. I don't like it. Buzz, buzz, buzz.
I prefer a V8 but will drive a V6 if the 8 is not available. I would not buy a 4 unless in a cheap economy car with manual trans.
Just my opinion.
Bob Heller
2017 Winnebago 29VE
Winter Springs FL
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332450 is a reply to message #332448] |
Wed, 23 May 2018 11:57 |
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GMC2000
Messages: 193
Registered: March 2018
Location: Georgia
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bobby5832708 wrote on Wed, 23 May 2018 11:44But it's still a 4 cylinder engine.
In my opinion, the worst thing about a 4 is the way it idles with the trans in gear and the air conditioner on. They're better than the crappy 4 cylindered cars of the 70's and 80's but the late model 4's I've been in still let you know there's a 4 cyl throbbing under the hood. Fine for a cheap economy car, not what I would want to drive every day.
The second worst thing about a 4 is that it sounds like a 4. I don't like it. Buzz, buzz, buzz.
I prefer a V8 but will drive a V6 if the 8 is not available. I would not buy a 4 unless in a cheap economy car with manual trans.
Just my opinion.
Inline fours dont sound like flat fours and even the same case/block configuration will sound different with different crankshaft journal spacings.
thats what Ive been wondering about this new GM four, what is it? an inline with flat plane crankshaft or a V4 or a H4, do two cylinders fire together?
for smoothness, V12s are pretty sweet: https://www.youtube.com/watch?v=WGE6M75McPI
OPs idea about a twin engined GMC would be radical but with the new engine management/electronics, completely doable and 4WD would be good.
two flat four cylinder engines (lowest profile) would be best for this I think (while we are dreaming).
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332451 is a reply to message #332448] |
Wed, 23 May 2018 11:56 |
Rob
Messages: 651
Registered: November 2013
Location: Victoria, BC
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The sound of these high output 4’s is extremely crappy (IMO).
A friend just bought a BMW 228i (2.0 litre 4) - the exhaust note is horrible. But virtually all of the manufacturers are now piping a pleasant exhaust note through the stereo - so inside it sounds like a BMW straight six (a VERY nice sound)...
With most brands the fake engine sound can’t even be disabled without pulling a fuse.
Rob
Victoria, BC
76 Royale - Rear Twins/Dry Bath
> On May 23, 2018, at 9:44 AM, Bob Heller wrote:
>
> But it's still a 4 cylinder engine.
>
> In my opinion, the worst thing about a 4 is the way it idles with the trans in gear and the air conditioner on. They're better than the crappy 4
> cylindered cars of the 70's and 80's but the late model 4's I've been in still let you know there's a 4 cyl throbbing under the hood. Fine for a cheap
> economy car, not what I would want to drive every day.
>
> The second worst thing about a 4 is that it sounds like a 4. I don't like it. Buzz, buzz, buzz.
>
> I prefer a V8 but will drive a V6 if the 8 is not available. I would not buy a 4 unless in a cheap economy car with manual trans.
>
> Just my opinion.
> --
> Bob Heller
> 1974 X-Canyonlands 26ft
> Original 455 exc for timing chain,
> Rockwell intake, valve covers. 141k miles.
> Winter Springs FL
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Victoria, BC -
76 Royale - Rear Twins/Dry Bath
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332568 is a reply to message #332266] |
Fri, 25 May 2018 20:19 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
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This strikes me the same as 'neuticles' (fake plastic testicles) fitted to neutered dogs.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332592 is a reply to message #332266] |
Fri, 25 May 2018 23:44 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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ljdavick wrote on Fri, 18 May 2018 09:01I hadn't realized how far engine technology has come. Chevy announced a 4 cylinder engine for their pickup trucks that produces 310 hp and 348 lb-ft of torque, with that torque peaking from 1,500 to 4,000 rpm.
We've got room under the hatch for 2 of those!
Larry Davick
Fremont, California
A Mystery Machine
'76 (ish) Palm Beach
I wonder how long it is? At 167 Cubic Inches, maybe there would be room for the 8-speed transmission. I can dream.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332627 is a reply to message #332266] |
Sun, 27 May 2018 08:32 |
TR 1
Messages: 348
Registered: August 2015
Location: DFW
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This would not be the first time there was a twin 4cyl GMC... as delivered to Grayhound, the GMC Scenicruiser had twin 4-71 Detroits linked with some sort of hydrostatic coupling. At the time there were no single diesels large enough to propel the bus... at least from Detroit. Apparently the setup was difficult to sync up, and was also very high maintenance. When the 8v71 came out a few years later, Grayhound paid Marmon Harrington to convert them all to the more traditional setup.
https://en.m.wikipedia.org/wiki/PD-4501_Scenicruiser
Mark S. '73 Painted Desert,
Manny 1 Ton Front End,
Howell Injection,
Leigh Harrison 4bag and Rear Brakes,
Fort Worth, TX
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332631 is a reply to message #332627] |
Sun, 27 May 2018 09:38 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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TV Tommy IVO ran twin Buick V8s joined at the ring gears on the flywheels
at the drags back in the day. Tony Nancy built the chassis and fully
streamlined body. Very competitive. Did a lot of exhibition appearances as
there were not many twin engine dragsters. "Freight Train" was another.
That was two Chryslers in line, joined with industrial chain couplers.
Jim Hupy
On Sun, May 27, 2018, 6:32 AM Mark Sawyer wrote:
> This would not be the first time there was a twin 4cyl GMC... as
> delivered to Grayhound, the GMC Scenicruiser had twin 4-71 Detroits linked
> with some
> sort of hydrostatic coupling. At the time there were no single diesels
> large enough to propel the bus... at least from Detroit. Apparently the
> setup was difficult to sync up, and was also very high maintenance. When
> the 8v71 came out a few years later, Grayhound paid Marmon Harrington to
> convert them all to the more traditional setup.
>
> https://en.m.wikipedia.org/wiki/PD-4501_Scenicruiser
> --
> Mark S. '73 Painted Desert,
> Manny 1 Ton Front End,
> Howell Injection,
> Leigh Harrison 4bag and Rear Brakes,
> Fort Worth, TX
>
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| Re: [GMCnet] Chevy 4 Cylinder engine [message #332645 is a reply to message #332631] |
Sun, 27 May 2018 11:40 |
Rob
Messages: 651
Registered: November 2013
Location: Victoria, BC
Karma: 3
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Why limit yourself to TWO Buick V8’s??
https://goo.gl/images/83aZYy
The “Showboat”: quad Buick V8’s and AWD! You can see it run in the Bikini Beach movie (of course being driven by a chimpanzee).
Rob
Victoria, BC
76 Royale - Rear Twins/Dry Bath
> On May 27, 2018, at 7:38 AM, James Hupy wrote:
>
> TV Tommy IVO ran twin Buick V8s joined at the ring gears on the flywheels
> at the drags back in the day. Tony Nancy built the chassis and fully
> streamlined body. Very competitive. Did a lot of exhibition appearances as
> there were not many twin engine dragsters. "Freight Train" was another.
> That was two Chryslers in line, joined with industrial chain couplers.
> Jim Hupy
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Victoria, BC -
76 Royale - Rear Twins/Dry Bath
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